Safety manhole cover

Abstract

The invention discloses a safety manhole cover. The safety manhole cover comprises a manhole cover body and a manhole cover base which are matched with the manhole cover body, wherein a pressure sensor is arranged at the matching position of the manhole cover base and the manhole cover body, a circle of luminous body is arranged on the manhole cover base on the periphery of the manhole cover body, whether the manhole cover body exists or not is detected through the pressure sensor, the luminous body around the manhole cover is controlled to emit light to remind pedestrians if the manhole cover body does not exists, a warning device is arranged in the manhole cover base, the warning device comprises an elastic plate body, a floating block with density which is smaller than water is fixedly connected with the lower end of the plate body, the plate body is bent and is arranged in a water-soluble cover, the manhole cover drives a pull rope to tear off a sealing cover which seals the warning device when the manhole cover is washed away by water which spews out of a sewer, and the elastic plate body of the warning device is bounced off and floats on a water surface to play a role of warning the pedestrians.

Description

technical field [0001] The invention relates to a manhole cover. Background technique [0002] Manhole covers are an indispensable municipal facility on urban roads. At present, manhole covers are often stolen. However, existing manhole covers do not have the functions of timely alarming and prompting passers-by and vehicles to avoid when the manhole covers are stolen, which often causes pedestrians to fall. Injuries in the well, damage to vehicles, and even death in severe cases. In addition, for well-known reasons, more inspection manhole covers are stolen at night. Due to the dim light at night and the difficulty of observation, inspection wells without manhole covers pose a greater threat to passers-by and vehicles. In the event of casualties or vehicle damage, it is often difficult for the relevant departments to deal with the issue of responsibility and compensation, which has caused a great burden to the country and society. [0003] In addition, in areas where floo...

AI Technical Summary

Problems solved by technology

[0003] In addition, in areas where floods occur, the manhole cover is often washed away by the gushing water from the sewer. Since the manhole cover is submerged in the water at this time, it cannot be seen with the naked eye, and it is easy to cause pedestrians to fall into the manhole.

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